10 Chapter 8, Linear differential equations of order n. Section 8.8, A Differential Equation with Nonconstant Coefficients. page 567

  10.1 problem Problem 14
  10.2 problem Problem 15
  10.3 problem Problem 16
  10.4 problem Problem 17
  10.5 problem Problem 18
  10.6 problem Problem 19
  10.7 problem Problem 20
  10.8 problem Problem 21
  10.9 problem Problem 22
  10.10 problem Problem 23